<template>
    <table v-if="treeData.userName">
        <tr>
            <td
                :colspan="Array.isArray(treeData.children) ? treeData.children.length * 2 : 1"
                :class="{parentLevel: Array.isArray(treeData.children) && treeData.children.length, extend: Array.isArray(treeData.children) && treeData.children.length && treeData.extend}"
            >
                <div :class="{node: true, hasMate: treeData.mate}">
                    <div
                        class="person"
                        :class="Array.isArray(treeData.class) ? treeData.class : []"
                        @click="$emit('click-node', treeData)"
                    >
                        <table border="1">
                          <tr><th colspan="3" style="background-color: #ff536f;color: #fff;">{{treeData.nickName}}[{{treeData.userName}}]</th></tr>
                          <tr>
                            <th colspan="3" v-if="treeData.role==3">公司({{treeData.leftRight==0?'左区':'右区'}})</th>
                            <th colspan="3" v-if="treeData.role==2">服务中心({{treeData.leftRight==0?'左区':'右区'}})</th>
                            <th colspan="3" v-if="treeData.role==1">普通会员({{treeData.leftRight==0?'左区':'右区'}})</th>
                          </tr>
                          <tr>
                            <th></th>
                            <th>左区</th>
                            <th>右区</th>
                          </tr>
                          <tr>
                            <th>业绩</th>
                            <th>{{treeData.leftAchievement}}</th>
                            <th>{{treeData.rightAchievement}}</th>
                          </tr>
                          <tr><th colspan="3">2020-01-12 16:59:25</th></tr>
                        </table>
                    </div>
                </div>
                <div
                    class="extend_handle"
                    v-if="Array.isArray(treeData.children) && treeData.children.length"
                    @click="toggleExtend(treeData)"
                ></div>
            </td>
        </tr>
        <tr v-if="Array.isArray(treeData.children) && treeData.children.length && treeData.extend">
            <td
                v-for="(children, index) in treeData.children"
                :key="index"
                colspan="2"
                class="childLevel"
            >
                <TreeChart :json="children" @click-node="$emit('click-node', $event)" />
            </td>
        </tr>
    </table>
</template>

<script>
export default {
    name: "TreeChart",
    props: ["json"],
    data() {
        return {
            treeData: {},
        };
    },
    watch: {
        json: {
            handler: function (Props) {
                let extendKey = function (jsonData) {
                    jsonData.extend =
                        jsonData.extend === void 0 ? true : !!jsonData.extend;
                    if (Array.isArray(jsonData.children)) {
                        jsonData.children.forEach((c) => {
                            extendKey(c);
                        });
                    }
                    return jsonData;
                };
                if (Props) {
                    this.treeData = extendKey(Props);
                }
            },
            immediate: true,
        },
    },
    methods: {
        toggleExtend: function (treeData) {
            treeData.extend = !treeData.extend;
            this.$forceUpdate();
        },
    },
};
</script>

<style scoped>
table {
    border-collapse: separate !important;
    border-spacing: 0 !important;
    text-align: center;
}
td {
    position: relative;
    vertical-align: top;
    padding: 0 0 50px 0;
    text-align: center;
}
.extend_handle {
    position: absolute;
    left: 50%;
    bottom: 30px;
    width: 10px;
    height: 10px;
    padding: 10px;
    transform: translate3d(-15px, 0, 0);
    cursor: pointer;
}
.extend_handle:before {
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    border: 2px solid;
    border-color: #ccc #ccc transparent transparent;
    transform: rotateZ(135deg);
    transform-origin: 50% 50% 0;
    transition: transform ease 300ms;
}
.extend_handle:hover:before {
    border-color: #333 #333 transparent transparent;
}
.extend .extend_handle:before {
    transform: rotateZ(-45deg);
}
.extend::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 15px;
    height: 15px;
    border-left: 2px solid #ccc;
    transform: translate3d(-1px, 0, 0);
}
.childLevel::before {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 100%;
    height: 15px;
    border-left: 2px solid #ccc;
    transform: translate3d(-1px, 0, 0);
}
.childLevel::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -15px;
    border-top: 2px solid #ccc;
}
.childLevel:first-child:before,
.childLevel:last-child:before {
    display: none;
}
.childLevel:first-child:after {
    left: 50%;
    height: 15px;
    border: 2px solid;
    border-color: #ccc transparent transparent #ccc;
    border-radius: 6px 0 0 0;
    transform: translate3d(1px, 0, 0);
}
.childLevel:last-child:after {
    right: 50%;
    height: 15px;
    border: 2px solid;
    border-color: #ccc #ccc transparent transparent;
    border-radius: 0 6px 0 0;
    transform: translate3d(-1px, 0, 0);
}
.childLevel:first-child.childLevel:last-child::after {
    left: auto;
    border-radius: 0;
    border-color: transparent #ccc transparent transparent;
    transform: translate3d(1px, 0, 0);
}
.node {
    position: relative;
    display: inline-block;
    margin: 0 1em;
    box-sizing: border-box;
    text-align: center;
}
.node .person {
    position: relative;
    display: inline-block;
    z-index: 2;
    overflow: hidden;
}
.node .person .avat {
    display: block;
    width: 4em;
    height: 4em;
    margin: auto;
    overflow: hidden;
    background: #fff;
    border: 1px solid #ccc;
    box-sizing: border-box;
}
.node .person .avat img {
    width: 100%;
    height: 100%;
}
.node .person .name {
    height: 2em;
    line-height: 2em;
    overflow: hidden;
    width: 100%;
}
.node.hasMate::after {
    content: "";
    position: absolute;
    left: 2em;
    right: 2em;
    top: 2em;
    border-top: 2px solid #ccc;
    z-index: 1;
}
/* 横板 */
.landscape {
    transform: translate(-100%, 0) rotate(-90deg);
    transform-origin: 100% 0;
}
.landscape .node {
    text-align: left;
    height: 8em;
    width: 8em;
}
.landscape .person {
    position: relative;
    transform: rotate(90deg);
    padding-left: 4.5em;
    height: 4em;
    top: 4em;
    left: -1em;
}
.landscape .person .avat {
    position: absolute;
    left: 0;
}
.landscape .person .name {
    height: 4em;
    line-height: 4em;
}
.landscape .hasMate {
    position: relative;
}
.landscape .hasMate .person {
    position: absolute;
}
.landscape .hasMate .person:first-child {
    left: auto;
    right: -4em;
}
.landscape .hasMate .person:last-child {
    left: -4em;
    margin-left: 0;
}
</style>
